EP 0514711 A1 19921125 - Buffered matrix aspirin tablet.
Title (en)
Buffered matrix aspirin tablet.
Title (de)
Aspirin-Tablette mit Puffermatrix.
Title (fr)
Comprimé à matrice tamponée contenant de l'aspirine.
Publication
Application
Priority
US 70250491 A 19910520
Abstract (en)
A buffered aspirin tablet composed of a uniform mixture of aqueous-based polymer coated aspirin, a buffering system and a hydrophillic gel-forming matrix material. The buffering system and matrix material provide a microenvironment on in vitro dissolution of about pH 5. The tablet does not require the use of multilayers and may be prepared by direct compression with conventional equipment.
IPC 1-7
IPC 8 full level
A61K 9/20 (2006.01); A61K 9/32 (2006.01); A61K 9/36 (2006.01); A61K 9/50 (2006.01); A61K 31/60 (2006.01); A61K 31/616 (2006.01); A61K 47/02 (2006.01); A61K 47/32 (2006.01); A61P 25/20 (2006.01); A61P 29/00 (2006.01)
CPC (source: EP KR US)
A61K 9/20 (2013.01 - KR); A61K 9/2009 (2013.01 - EP US); A61K 9/2054 (2013.01 - EP US); A61K 9/2081 (2013.01 - EP US); A61K 9/5047 (2013.01 - EP US); A61K 31/60 (2013.01 - EP KR US); A61P 25/20 (2017.12 - EP); A61P 29/00 (2017.12 - EP)
Citation (search report)
- [X] EP 0207041 A2 19861230 - GALEPHAR [BE]
- [A] US 4857337 A 19890815 - MILLER RONALD W [US], et al
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL PT SE
DOCDB simple family (publication)
EP 0514711 A1 19921125; EP 0514711 B1 19960313; AT E135222 T1 19960315; AU 1639092 A 19921210; AU 636538 B2 19930429; CA 2067975 A1 19921121; CA 2067975 C 20030114; DE 69208934 D1 19960418; DE 69208934 T2 19960725; DK 0514711 T3 19960812; ES 2084867 T3 19960516; GR 3019826 T3 19960831; JP 3150763 B2 20010326; JP H05170652 A 19930709; KR 100225017 B1 19991015; KR 920021136 A 19921218; US 5576024 A 19961119
DOCDB simple family (application)
EP 92107674 A 19920507; AT 92107674 T 19920507; AU 1639092 A 19920519; CA 2067975 A 19920504; DE 69208934 T 19920507; DK 92107674 T 19920507; ES 92107674 T 19920507; GR 960401201 T 19960506; JP 14802092 A 19920515; KR 920008334 A 19920518; US 46538195 A 19950605